Boyd (Walton Goggins) says he's reading "Of Human Bondage". The book is written by W. Somerset Maugham, who is one of Walton Goggins' favorite authors.
In yet another reference to the movie Tombstone (1993), at the Bennett family luncheon (before the opening title scene), the Wyatt Earp (Kurt Russell) quote, "You tell 'em I'm comin', and hell's comin' with me!" is referenced by both the U.S. Marshals coin that Raylan gives Loretta that says, "Justice is Coming," then Raylan's comment about the Dixie Mafia coming and bringing hell with them.
Larenz Tate also co-starred with Timothy Olyphant in A Man Apart (2003), in which Tate played a U.S. Federal Agent and Olyphant a criminal.
Pappy Van Winkle bourbon is referred to as Piper Van Winkle which must be a copyright issue.